/*********************************************************************
*                SEGGER Microcontroller GmbH & Co. KG                *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2010  SEGGER Microcontroller GmbH & Co. KG       *
*                                                                    *
*        Internet: www.segger.com    Support:  support@segger.com    *
*                                                                    *
**********************************************************************

** emWin V5.06 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws.   Knowledge of the
source code may not be used to write a similar product.  This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : GUIArcAA.C
Purpose     : Draw Arc routines with Antialiasing
---------------------------END-OF-HEADER------------------------------
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

#include "GUI_Private.h"

/*********************************************************************
*
*       Static code
*
**********************************************************************
*/
/*********************************************************************
*
*       _DrawArcAA
*/
static void _DrawArcAA(int x0, int y0, int rx, int ry, int a0, int a1) {
  int PenSizePrev = GUI_GetPenSize();
  int PenSize_AA;
  int Factor;

  Factor = GUI_Context.AA_HiResEnable ? 1 : GUI_Context.AA_Factor;
  /* Convert into Hires coordinates (if not already done) */
  x0 *= Factor;
  y0 *= Factor;
  rx *= Factor;
  ry *= Factor;
  PenSize_AA = PenSizePrev * GUI_Context.AA_Factor;
  GUI_AA_Init_HiRes(x0 - rx - PenSize_AA, x0 + rx + PenSize_AA);
  GUI_SetPenSize(PenSize_AA);
  GL_DrawArc(x0, y0, rx, ry,a0,a1);
  GUI_SetPenSize(PenSizePrev);          /* restore former pen size */
  /* Cleanup */
  GUI_AA_Exit();
}

/*********************************************************************
*
*       Public code
*
**********************************************************************
*/
/*********************************************************************
*
*       GUI_AA_DrawArc
*/
void GUI_AA_DrawArc(int x0, int y0, int rx, int ry, int a0, int a1) {
  GUI_LOCK();
  #if (GUI_WINSUPPORT)
    WM_ADDORG_AA(x0,y0);
    WM_ITERATE_START(NULL) {
  #endif
  _DrawArcAA( x0, y0, rx, ry, a0, a1);
  #if (GUI_WINSUPPORT)
    } WM_ITERATE_END();
  #endif
  GUI_UNLOCK();
}

/*************************** End of file ****************************/
